catch evolution social widget does not work

Hi, I am trying to use catch evolution social widget to make a link to my facebook page (I would like the 'F' of Facebook, not the thumbs up icon). But I am not getting it to work. When I go to appearance -> customize, then I don't see anywere the option social links. My site is www.yogatherapie.be For the moment I am using a Widget of Jetpack. Kind regards, Mark